Finding the Fourth Proportional to 436,881.80, 656,013.90 and 319,377.80
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Solution
The fourth proportional to 436,881.80, 656,013.90 and 319,377.80 is: 479,571.99
Step by Step Solution
- Step 1: Write the proportion equation
436,881.80 : 656,013.90 = 319,377.80 : x - Step 2: Convert to fraction form
436,881.80/656,013.90 = 319,377.80/x - Step 3: Cross multiply
436,881.80x = 656,013.90 × 319,377.80 - Step 4: Simplify right side
436,881.80x = 209,516,276,151.42 - Step 5: Solve for x
x = 209,516,276,151.42/436,881.80 - Step 6: Final answer
x = 479,571.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.